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(No Model.) Y 3 Sheets-Sheet 1. A. L. PLATT.

POWER PRESS. y

No. 432,836. Patented JulyZZ, 1890.

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(No Model.) 3 sheets-sheen 2. A. L. PLATT.

POWER PRESS. No. 432,836. Patented Jul-y 22, 1890.

(No Model.) 3 Sheets-Sheet 3. A. L. PLATT.

POWER PRESS.

No. 432,886. Patented July 22, 1890.

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UNITED STATES PATENT OEETCE..

ALBERT L. PLATT, OF CLINTON, ILLINOIS, ASSIGNOR OF THREE-FOURTHS TO`VESPASIAN VARNER AND HENRY A. MAGILL, OF SAME PLACE.

POWER-PRESS.

SPECIFICATION forming part of Letters Patent No. 432,836, dated July 22,1890.

Application tiled December 2, 1889. Serial No. 332,323. (No model.)

.T all whom it may concern.-

Be it known that I, ALBERT L. PLATT, of Clinton, in the county of DeVitt and State of Illinois, have invented certain new and usefulImprovements in Power-Presses; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and usethe same.

My invention relates to improvements in power-presses; and it consistsin certain features of construction and in combination of partshereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure lis a side elevation. Fig. 2 is aplan, partly in section, on line .t x, Fig. 1. Fig. 3 is a bottom planof disk F. Fig. 4 is a plan, partly in section, on lines y y, Fig. l.Fig. 5 is a bottom plan of member D.

A and B are the top and bottom members of the press-frame, and these arerigidly connected in any suitable inanner-for instance, as shown, bymeans of uprights a and tie rods a. The frame-work may be of metal orwood according to circumstances; but if of wood the lower member Bshould be re-en forced by a metal plate B", and if the framework be ofmet-al members B B would of course becast integral. Next above plate Bare the three carryingwheels O O O, these wheels being adapted to travelin a circular path on plate B. lVheels O are held in place by means of athree-armed spider C, the

J extremes c of the spider serving as axles for these wheels. N extabove wheels `O and adapted to :ride thereon is located a heavy lateralwheel or disk D, and next above this disk are three cam-wheels E, thesecam-wheels 4o being adapted to travel in a circular path on disk D. Thecam-wheels are provided with sprockets e, and disk D hasa series ofpockets d, arranged in circular order and adapted to engage thesprockets, whereby the relative movements of cam-wheels and disk arerendered positive These cam-wheels are preferably of the two-ca1nvariety shown, and are held in place by means of spider E', the spiderbeing of the three-arm variety, and the eX- tremes of the arms e servingas axles for the cam-wheels. Next above thecarn-wheels and restingthereon is located a heavy disk F. The latter is provided with pocketsf, arranged in circular order on the under face thereof, for receivingthe sprockets of the cam-wheels 5 5 Disk F does not revolve on its axis,but, on the contrary, is held accurately in position-for instance, bymeans of ways b, connected with the frame-work of the press, these waysbeing embracedby shoulders f of the disk. disk has avertically-reciprocating movement on the ways, the disk being movedupward by the action of the cam-wheels below and moving downward bygravity. Disk F has an upwardly-proj ectin g centrally-located hub F',65 that operates in a central vertical hole of stationary table G, thelatter being rigidly connected with the frame-work of the press. Hub Fmay extend more or less above the table, according to circumstances. Forsome pur- 7o poses the hub, when in its depressed position, should beflush with the top surface of the table-for instance, in `ease of moldsof some kind that are to be moved along over the ta ble. For otherpurposes this hub should eX- tend so far above the table that,forinst-ance, dies, plunger, molds, or platen may be attached to thehub.

Il is an upright shaft having a bearing above in a central hole in diskF and hub F', the 8o shaft having a bearing below in a centrallylocatedhole in member' B B', this shaft eX- tending through central holes indisk D and the two spiders. This shaft may remain stationary and serveonly as a steady-pin for holding disk D and the two spiders in place, inwhich case some provision must be provided for rotating disk D foroperating the press. To this end a preferable construction is shown,disk D having teeth-for instance, 9o beveled teeth d-for engagingbevel-pinion I, the latter being mounted on the driving-shaft l. In easeit is desired to operate the press by horsepower, shaft l-I may serve asadriving-shaft, in which case it should extend below the framework ofthe press and have attached a sweep 7L, (shown in Fig. 1,) in which casedisk D is keyed fast to shaft H, and the beveled gearing shown would insuch case of course be dispensed with. zoo

This 6o This p'ress is adapted to a great variety of work, and hencevarious modifications may be made, according to circumstances, to adaptthe press for special purposes. For instance, member A, that necessarilysustains the endthrust of hub F, may be located any desired distanceabove table G, according to the size of the dies, molds, or whatevermechanism or material is to be operated or wrought upon between thetable and member A, and the form and construction of the table and ofmember A may of course be varied indefinitely, according tocircumstances. Sometimes it is preferable to construct member A ofwooden beams. For other purposes this part had better be of metal, andwould likely require grooves or holes for securing bolts, &c., by whichdies, molds, or other mechanism may be attached, and the same may besaid of the table; also the shape and throw of the cam-wheel may bevaried according to circumstances, so long as the three wheels are alikeand opposite sides of each wheel are alike. It is evident that if thesecam-wheels have sections thereof concentric with the axes of therespective wheels disk F will remain at rest during the engagementthereof with such concentric sections, in which case anintermittently-reciprocating movement would be imparted to disk F. Ifsuch concentric sections of the cam-wheels were respectively at theheels and toes of the cams, disk F would remain at rest for a time atthe eX- tremes of its throw, which in most cases is desirable.

It is evident that the modifications suggested are within the purposeand spirit of my invention, as they would 4not change the generalfeatures of the press, and it is believed that from the drawings andspecification parties skilled in the art will have no diculty in makingsuch modifications as have been suggested,and others that may be neededto adaptthe press for the various uses for which it is likely to bewanted.

It may be well to mention the fact that the pockets in disk F perform nofunction eX- cept to make room for the sprockets of the cam-wheels, andif the faces of these camwheels were broad enough to have suitablebearing-surfaces at the sides of the sprockets an annular groove in diskF to receive the sprockets would answer the purpose.

1. In apress, in combination,bedplate, lateral wheel, and movable diskarranged in the order indicated, carrying-wheels adapted to operatebetween the bed-plate and the lateral wheel, cam-wheels adapted tooperate between the lateral wheel and movable disk, and suitablemechanism, preferably as shown, for

rotating the lateral. wheel on its axis, substantially as set forth.

2. In a press,in combination, bed-plate, lateral Wheel, and movable diskarranged in the order indicated and adapted to operate in parallelplanes, carrying-wheels adapted to operate between the bed-plate andlateral wheel, and cam-wheels adapted to' operate between the lateralwheel and movable disk, whereby such disk is actuated by rotating thelateral wheel and cam-wheels, substantially as set forth.

3. In a press, the combination, with bedplate, lateral Wheel, andgravity-disk arranged in the orderl indicated and adapted to operate inparallel planes, of a series of carryingwheels and a series ofcam-wheels, the former being adapted to operate between the bedplatc andlateral wheel and the latter being adapted to operate between thelateral wheel and gravity-disk, substantially as set forth.

4. In a press, the combination, with bedplate, lateral wheel, andgravity-disk, carrying-wheel and cam-wheels arranged, respectively,between the bed-plate and lateral wheel and between the lateral wheeland gravity-- disk, of upright-shaft, spiders mounted on such shaft, theextremes of these spiders serving, respectively, as axles of thecarryingwheels and for the cam-wheels, substantially as set forth.

5. In a press, in combination,bedplate, lateral Wheel, and movable disk,carrying-wheels and cam-wheels arranged, respectively, between thebed-plate and lateral wheel and between the lateral wheel and movabledisk, such cam-wheels having sprockets on the faces thereof, the lateralwheel having pockets for engaging such sprockets of the camwheels,substantially as set forth.

6. In combination, upright press-frame having bed and opposing topmember and intermediate table, lateral wheel and gravity-disk located inthe order indicated between the table and bed-plate, cam-wheels andcarrying-wheels arranged, respectively, between the lateral wheel andgravity-disk and between the bed-plate and lateral wheel, thegravity-disk having a centrally-located npwardly projecting hub, suchhub being adapted to operate in acorresponding hole in the table andadapted to extend more or less above the table, substantially as setforth.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 12th day of October, 1889.

ALBERILL. PLA'lT.

Witnesses:

CHAs. H. DORER, ALBERT E. LYNCH.

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